Characteristics of
important invertebrates is given below:
- The body is made of two germ layers
- The digestive cavity has only one Opening.
- There is no respiratory or circulatorySystem.
- There is no central nervous system
- Jelly fish are found in oceans.
- The body is made up of three germ
Endoderm.
- The digestive cavity has only one Opening.
- They possess a definite head with sense Organs.
- Planaria are found in oceans and fresh waters.
- Planaria is an example of Asexual reproduction.
- It belongs to the major group of invertebrates i.e. “insects”.
- The body is divided into head, thorax and abdomen.
- They use wings for flight.
- They possess blood circulatory system and respire
Through special air tubes (tracheal
tubes).
- It lives as free-living but the female transmits the virus
Of dengue fever from one human to
the other.
- The mosquito originated in Africa but is now found throughout the world.
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